Acetylene-gas generator.



- I I PATENTED DEG. 31,1907. F. E. STOVER & G. L. DARNALL.

AOE'TYLENB GAS GENERATOR.

APPLICATION FILED AUG. 1, 1907.

attowwq 7-HE NORRIS PETERS co., WASHINGTON, 0. c4

UNITED STATES PATENT OFFICE.

FRANK E. STOVER AND CHARLES LEE DARNALL, OF OHATTANOOGA, TENNESSEE.

ACETYLENE-GAS GENERATOR.

No. 875,468. Patented Dec. 31, 1907.

Specification of Letters Patent. Application filed August 1, 1907.Serial No. 386,684.

To all whom it may concern:

Be it known that we, FRANK E. STovER and CHARLES LEE DARNALL, citizensof the United States, residing at Chattanooga, in I the county ofHamilton, State of Tennessee, have invented new and useful Improvementsin Acetylene-Gas Generators, of which the following is a specification.

Our invention relates to acetylene gas generators, and has for itsobjects, first, to provide an improved means for indicating the amountof carbid in the carbid chamber, and, secondly, to provide means forlifting and sustaining the carbid chamber cover, together with thecarbid indicating mechanism, whereby access may be had to the carbidchamber for filling the same without danger of disarranging said carbidindicating mechanism. 5 These objects we accomplish in the manner and bythe means hereinafter described and claimed, reference being had to theaccompanying drawing, in which:

Figure 1 is a side elevation of an acetylene generator of the carbidfeed type, showing the carbid chamber cover raised above the carbidchamber, said cover being shown in section to show the carbid indicatingmechanism carried thereby. Fig. 2 is a detail sectional view of theplate supporting the pulleys of the carbid indicating mechanism, takenat a right angle to Fig. 1. Fig. 3 is an elevation showing a somewhatmodified construction of cover lifting mechanism.

Similar numerals of reference denote as far as possible correspondingparts in the several VTleYVS.

In the said drawing the reference numeral 1 denotes the body of agenerator of the carbid feed type, such, for instance, as is disclosedin Letters Patent No. 853,746, granted to the assignee of Frank E.Stover, May 14, 1907. In said construction there is a gas bell 2, and acarbid chamber 3, the cover 4, when in position, fitting between saidgas bell and carbid chamber and being water sealed in the upper chamberof the generator.

Fitting snugly within the cover 4 near its upper end, and retainedtherein by a strap 5 extending lengthwise of said cover and boltedthereto near its lower end, is a base plate 6, having fixed to its upperside a bridge piece 7 providing bearings for two pulleys 8 and 9, overwhich passes a cord 10, one end extending through an aperture in saidbase plate downward the body of lower end a centrally into the cover 4and carrying at its suitable weight 11. The other end of said cordextends through a similar aperture in the base plate 6 near one edgethereof, and is connected with the upper inner end of an indicating rod12 that extends downwardly below the lower edge of the cover 4, wherebyit is water sealed therewith, and is then bent abruptly back to extendup the outer side thereof, as shown, the same passing through suitableguides 13 on the exterior of the cover. We prefer to form said rod of aflat metal strip, and the same may extend for any desired distance abovethe top of the cover 4 so that it may be visible at all times toindicate the level of the carbid in the carbid chamber 3.

Bolted at its lower end to the exterior of the generator 1 is a guiderod 14, on which telescopes a hollow extension rod 15 that is benthorizontally at its upper end and engaged, preferably at a single point,with the top of the cover4 by means of a clip 16. Said. hollow rod 15passes through a guide 17 on the generator, and has fixed thereto at itslower end a handle 18 that is extended at its opposite side into a pin19 adaptedto be engaged in a cup-shaped stop 20 when said rod 15 israised to approximately its highest point.

From the above description the operation of our improved constructionwill be under stood as follows: With the cover 4 in operative positionover the carbid chamber 3 and water sealed between the same and the gasbell 2, the rod 15 will be telescoped on rod 14, and the weight 11 ofthe carbid indicator will rest on the carbid in chamber 3, the weight ofindicating rod 12 taking up the slack of cord 10 and being therebygoverned in its vertical position by the level of the carbid in chamber3, as will be readily understood, its upper end being raised when thecarbid level is low, and vice versa. When it is desired to fill thecarbid chamber 3, the operator by lifting on handle 18 will raise rod15, and with it the cover 4, it being under stood that, when said coveris centered over carbid chamber 3, the pin 19 will lie to one side ofstop 20 so as to upward movement of rod 15. When the handle 18 and pin19 are a little above stop 20, said handle may be turned horizontall tobring said pin 19 over stop 20 so that the two will engage when thehandle 18 is reclear the same in the leased to support the parts intheir uppermost position, as shown in ig. 1. This turning of handle 18will correspondingly rotate rod 15 so that the cover 4 will be carriedto one side of carbid chamber 3, permitting freeaccess to the latter.

tor body, a carbid chamber, a

carbid chamber,

It being observed that the carbid indicating. mechanism is carriedentirely by the cover 4, the same will move therewith, while saidlifting mechanism will obviate all necessity for independently handlingsaid cover, thus eliminating all danger of the latter being reversedwhen removed, which is liable to re sult in the weight 11 dropping onthe base plate 6 and breaking the mechanism. Furthermore, themaintaining of the vertical position of the cover 4 at all timesabsolutely prevents any derangement of the carbid indicating mechanism,which is liable to occur even with a slight tilting of the cover duringmanual removal or replacement.

We prefer to connect the rod 15 with the cover 4 at a single point only,in order that said cover may have a limited independent movement on saidrod, so that it may be more readily centered over carbid chamber 3 whenabout to be placed thereon.

We have illustrated in Fig. 3 a structure adapted more particularly foruse in large generators, wherein the size of the generator permits asingle rod 21 to be employed in lieu of the telescoping members, saidrod moving in upper and lower guides 22 and 23 and employing a handle 24and pin 25 adapt ed to be engaged with a cup-shaped stop 26, as in theFig. 1 construction. l/Ve also provide a hook 27 pivoted at 28 on saidrod 21 that will automatically engage under and lock with the upperguide 22 when the rod 21 is in its lowermost position with the cover inoperative position. on the carbid chamber, said device serving, inconnection with rod 21, to lock the cover in position against upwardmovement due to abnormal gas pressure, thus dispensing with thenecessity for weighting said cover, as has been found necessaryheretofore in machines of large capacity.

Having thus described. our invention, what We claim as new and desire tosecure by Let ters Patent is:

1. In an acetylene gas generator, a generaremovable cover for saidcarbid chamber that is water sealed when in operative position over saidand means carried by said generator body for vertically-lifting and supporting said cover free from said carbid chamber to permit access tosaid carbid chamber.

2. In an acetylene gas generator, a generator body, a carbid chamber, aremovable cover for said carbid chamber, a carbid indicator mechanismcarried entirely by said cover, and means carried by said generator bodyfor vertically lifting and supporting said cover and carbid indicatormechanism free from said carbid chamber, whereby said carbid indicatormechanism will be undisturbed.

3. In an acetylene gas generator, a generator body, a carbid chamber, aremovable cover for said carbid chamber, and a vertically movable rod onsaid generator body engaged with said cover to lift the lattervertically in the upward movement of said rod.

1. In an acetylene gas generator, a generator body, a carbid chamber, aremovable cover for said carbid chamber, a vertically movable rod onsaid generator body engaged with said cover to lift the lattervertically in the upward movement of said rod, and means for supportingsaid rod in its lifted position.

5. In an acetylene gas generator, a generator body, a carbid chamber, aremovable cover for said carbid chamber, and a vertically movable androtatable rod having an upper horizontal end. engaging said coverwhereby the latter may be lifted vertically with said rod free from itscarbid chamber and shifted laterally away from the upper open end ofsaid carbid. chamber.

6. In an acetylene gas generator, a generator bod y, a carbid chamber, aremovable cover for said carbi d chamber, a vertically movable androtatable rod having an upper horizontal end engaging said cover wherebythe latter may be lifted vertically with said rod free from its carbidchamber and shifted laterally away from the. upper open end of said carbid chamber, a pin on said rod, and a stop on said generator body overwhich said pin will swing when said rod is rotated to shift said coverlaterally, said pin engaging said stop when said rod is released tosupport the parts in their lifted position.

7 In an acetylene gas generator, a generator body, a carbid chamber, awater sealed cover for said carbid chamber adapted to be liftedvertically from said carbid chamber, and a vertically movable rod havinga horizontal upper arm engaging said cover at a single point only,whereby said cover may be lifted by said rod and will have a limitedmovement on said arm to permit its being centered over said carbidchamber.

8. In an acetylene gas generator, a generator body, acarbid chamber, aremovable cover for said carbid chamber, and a telescoping lifting armon said generator body engaged with said cover to lift the latter freefrom its carbid chamber.

9. In anacetylene gas generator, a generator body, a carbid chamber, avertically movable cover for said carbid chamber, a lifting rod on saidgenerator body connected with said cover, and means for locking saidlifting rod and cover in their lowermost position.

10. In an acetylene gas generator, a generator body, a carbid chamber, avertically movable cover for said carbid chamber, a lifting rod on saidgenerator body connected with said cover, a guide on said generator bodyfor said rod, and a pivoted hook on said rod adapted to engage and lockwith said guide when said rod is in its lowermost position, whereby saidrod and cover will be held against vertical movement.

11. In an acetylene gas generator, a generator body, a carbid chamber, aremovable cover for said carbid chamber, and a water sealed carbidindicating mechanism carried solely by said cover and removabletherewith.

12. In an acetylene gas generator, a generator body, a carbid chamber, aremovable cover for said carbid chamber, and a carbid indicatingmechanism carried solely by said cover and removable therewith, andconsisting of a base plate fixed in said cover,

pulleys supported from said base plate, a cord passing over saidpulleys, a weight at one end of said cord within said cover, and anindicating rod connected to the other end of said cord within said coverand bent at its lower end to pass beneath the lower edge of said coverto project upwardly alongside the outer side of said. cover.

In testimony whereof, we have hereunto presence of subscribing 30 setour hands in the witnesses.

FRANK E. STOVER. CHARLES LEE DARNALL.

